Carl is from Cape Town, South Africa and currently a director of
Siyavula, an education technology
company. His academic background and interests are in applying
statistical inference to complex problems.

Carl Scheffler

Home page

This site is depressingly out of date, but still the most current thing I
have. I might get around to updating it someday.

Recent writings

Cracking Chaocipher Following the recent
revelation of the mechanism underlying a 90 year old encryption
method, the messages provided as a challenge and proof of its
strength by its creator can now be cracked relatively
easily. [HTML]